Cross-site scripting (XSS) vulnerability in Adobe ColdFusion web server allows remote attackers to inject arbitrary HTML or web script via the User-Agent HTTP header, which is not sanitized before being displayed in an error page.
http://www.vupen.com/english/advisories/2007/0593
http://www.securitytracker.com/id?1017645
http://www.securityfocus.com/bid/22401
http://www.securityfocus.com/archive/1/459178/100/0/threaded
http://www.adobe.com/support/security/bulletins/apsb07-04.html